qemuimagetest: Remove connman test for lsb image and fix one warning in Test_Create_Qemu

There is no connman in LSB image. So we need to remove connman test from it.
And when we check if ip address fetched by Test_Fetch_Target_IP is valid,
we should use "==" operator for string comparison.

Signed-off-by Jiajun Xu <jiajun.xu@intel.com>

scripts/qemuimage-testlib

@@ -420,7 +420,7 @@ Test_Create_Qemu()
 		sleep 5
 		TARGET_IPADDR=`Test_Fetch_Target_IP $PID`
 		# If IP address is 0, means there is no qemu process found
-		if [ ${TARGET_IPADDR} -eq 0 ]; then
+		if [ ${TARGET_IPADDR} == "0" ]; then
 			Test_Info "There is no qemu process or qemu ip address found, return failed"
 			return $ret
 		fi

scripts/qemuimage-tests/scenario/qemuarm/poky-image-lsb

@@ -6,4 +6,3 @@ sanity shutdown
 sanity zypper_help
 sanity zypper_search
 sanity rpm_query
-sanity connman

scripts/qemuimage-tests/scenario/qemumips/poky-image-lsb

@@ -6,4 +6,3 @@ sanity shutdown
 sanity zypper_help
 sanity zypper_search
 sanity rpm_query
-sanity connman

scripts/qemuimage-tests/scenario/qemuppc/poky-image-lsb

@@ -6,4 +6,3 @@ sanity shutdown
 sanity zypper_help
 sanity zypper_search
 sanity rpm_query
-sanity connman

scripts/qemuimage-tests/scenario/qemux86-64/poky-image-lsb

@@ -6,4 +6,3 @@ sanity shutdown
 sanity zypper_help
 sanity zypper_search
 sanity rpm_query
-sanity connman

scripts/qemuimage-tests/scenario/qemux86/poky-image-lsb

@@ -6,4 +6,3 @@ sanity shutdown
 sanity zypper_help
 sanity zypper_search
 sanity rpm_query
-sanity connman